378727873

This number is a prime.

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378727873is a palindromic prime such that it is equal to p+R(p) for 126 distinct primes p. No larger prime than 378727873 has been found/reported with more than 126 sums like these. Found by J. K. Andersen. [Rivera]

Submitted: 2019-07-27 13:50:39; Last Modified: 2019-08-18 22:01:19.